Gear-type earmuff with adjustable length

Abstract

The invention discloses a gear-type earmuff with an adjustable length. The earmuff comprises a U-shaped bracket and warm-keeping shields, wherein vertical gear racks, which extend upwards, are arranged in the warm-keeping shields; the vertical gear racks are inserted and sleeved in inserting holes at two ends of the U-shaped bracket; through slots are arranged on the sidewalls of the inserting holes, and adjusting wheels are hinged in the through slots; outer toothed parts are arranged on the outer walls of the adjusting wheels, and the outer toothed parts are meshed with the vertical gear racks; limiting sheets are fixedly arranged on the upper inner sidewalls or the lower inner sidewalls of the through slots; and the limiting sheets are clamped in corresponding toothed grooves of the outer toothed parts. The U-shaped bracket and the warm-keeping shields of the earmuff can be detached and changed; moreover, the length of the U-shaped bracket can be micro-adjusted to meet users of different head forms; and the earmuff is convenient to clean and change.

Description

Technical field: [0001] The invention relates to the technical field of warming articles for daily use, and more specifically relates to a gear-type earmuff with adjustable length. Background technique: [0002] Ear muffs are a pair of ear coverings connected by cloth bands, elastic bands, or soft metal bands to keep out the cold. The structure of the earmuffs is very simple, mainly composed of a bracket and a protective sleeve. [0003] In the existing earmuffs, the bracket and the protective cover are directly fixed and cannot be disassembled and adjusted in length. When the protective cover is damaged or polluted, it cannot be disassembled and cleaned, and the entire earmuff needs to be replaced, which is very troublesome and wasteful. It cannot be fine-tuned in length according to people with different head shapes, so it cannot be well worn on the user's head. Invention content: [0004] The purpose of the present invention is to overcome the deficiencies of the prio...

AI Technical Summary

Problems solved by technology

[0003] In the existing earmuffs, the bracket and the protective cover are directly fixed and cannot be disassembled and adjusted in length. When the protective cover is damaged or polluted, it cannot be disassembled and cleaned, and the entire earmuff needs to be replaced, which is very troublesome and wasteful. It cannot be fine-tuned according to the length of people with different head shapes, so it cannot be well worn on the user's head

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